Brown spots on lawn - Ask Extension
Hi - we have had many brown spots develop over the last couple of weeks on our lawn. We do not use any fertilizers, weed killers, etc. We are guessing...
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Brown spots on lawn #874597
Asked June 25, 2024, 10:29 AM EDT
Hi - we have had many brown spots develop over the last couple of weeks on our lawn. We do not use any fertilizers, weed killers, etc. We are guessing it is from grubs. Could someone pleasegive us a more educated diagnosis? Thank you.
Washington County Minnesota
Expert Response
Good Morning Rochelle,
Thank you for contacting the U of M Extension Service.
Please click on the following link from the U of M Extension Yard and Garden website:
https://extension.umn.edu/yard-and-garden-insects/japanese-beetles
This information states:
- Japanese beetle grubs are pests of turfgrass. They chew grass roots, causing the turf to brown and die. Grub-damaged turf pulls up easily from the soil, like a loose carpet.
Here is another link: https://extension.umn.edu/lawns-and-landscapes/lawn-care
This information has numerous links to all information about lawn care.
Good Luck!
